Installing Homebrew on macOS

According to the Homebrew site, to install it, I need to type:

brew install wget

I get an error message:

-bash: brew: command not found

Found this answer. The problem, however, is I don't see brew in /usr/local/bin.

I added the below line to my .bashrc file

export PATH=/usr/local/bin:$PATH

Still getting the command not found error.

How do I install Homebrew on macOS?

It's on the top of the Homebrew homepage.

From a Terminal prompt:

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"

The command brew install wget is an example of how to use Homebrew to install another application (in this case, wget) after brew is already installed.

---

Historic...

Before about 2020, the command given on the Homebrew page was:

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

If you are using m1 chip mac then run below command after installing homebrew and open the terminal again:

echo "export PATH=/opt/homebrew/bin:$PATH" >> ~/.zshrc

Check if Xcode is installed or not:

$ gcc --version

$ ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"

$ brew doctor

$ brew update

http://techsharehub.blogspot.com/2013/08/brew-command-not-found.html "click here for exact instruction updates"

How To Set Up Your Mac for Homebrew

Step 1

Check you have already Install the Xcode. Run the below command in your terminal

/usr/bin/xcodebuild -version

It will print the below sample output:

> Xcode 12.3 Build version 12C33

Step 2

Now Open Xcode:

1. Select preferences
2. Select location tab
3. Now in command Line Tool select your Xcode version from dropdown menu

Step 3

In terminal run below command:

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

Note : if you have M1 Chip Mac run the below command, close terminal and open the terminal again

echo "export PATH=/opt/homebrew/bin:$PATH" >> ~/.zshrc

For Mac with Apple Silicon (M1), First export your path and enter the brew command.

export PATH=/opt/homebrew/bin:$PATH
brew

I might be late to the party, but there is a cool website where you can search for the packages and it will list the necessary command to install the stuff. [BrewInstall][1] is the website.

However you can install wget with the following command:

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
brew install wget

Hope this helps :) [1]: https://brewinstall.org

For m1 mac, use this command and restart the terminal.

> echo "export PATH=/opt/homebrew/bin:$PATH" >> ~/.zshrc

On an out of the box MacOS High Sierra 10.13.6

$ ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Gives the following error:

> curl performs SSL certificate verification by default, using a "bundle" of Certificate Authority (CA) public keys (CA certs). If the default bundle file isn't adequate, you can specify an alternate file using the --cacert option.

> If this HTTPS server uses a certificate signed by a CA represented in the bundle, the certificate verification probably failed due to a problem with the certificate (it might be expired, or the name might not match the domain name in the URL).

> If you'd like to turn off curl's verification of the certificate, use the -k (or --insecure) option.

> HTTPS-proxy has similar options --proxy-cacert and --proxy-insecure.

Solution: Just add a k to your Curl Options

$ ruby -e "$(curl -fsSLk https://raw.githubusercontent.com/Homebrew/install/master/install)"

Brew has now been rewritten in Bash!

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"

Here is a version that wraps the homebrew installer in a bash function that can be run from your deployment scripts:

If you still get error after running,

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Then try to download and install command line tool from https://developer.apple.com/download/more/ for your particular Mac os and Xcode version.

Then try to run,

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

and then

brew install node

Open Terminal and put below command.
Install:

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Uninstall:

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"

Once install complete after entering brew commands:

brew install wget
brew install node
brew install watchman
...
...

You can install brew using below command.

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

However, while using this you will get warning that it buy homebrew installer is now deprecated. Recommended to use Bash instead.

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"

I faced the same problem of brew command not found while installing Homebrew on mac BigSur with M1 processor.

I - Install XCode if it is not installed yet.

II - Select terminal.app in Finder.

III - RMB click on Terminal and select "Get Info"

IV - Select Open using Rosetta checkbox.

V - Close any open Terminal windows.

VI - Open a new Terminal window and install Hobebrew:

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"

VII - Test Homebrew installation.

IIX - Uncheck Open using Rosetta checkbox.

first, install the homebrew by pasting the command in the mac terminal

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" 

then edit your .bashrc file

vi .bashrc

paste the below command at the end and save it

export PATH=/opt/homebrew/bin:$PATH

to save simply type :wq and press enter

if bashrc file is not there then simply create and then edit the file, to create type

touch ~/.bashrc

and then simply run the command

source ~/.bashrc

now try to use the brew command hopefully it will work now

Update: if you are in M1 mac then after installing homebrew just run the command mentioned below and reload the terminal

echo "export PATH=/opt/homebrew/bin:$PATH" >> ~/.zshrc

Following command doesn't work if your are under proxy.

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Instead user following -

ruby -e "$(curl -x http://DOMAIN%5cUSER_NAME:PASSWORD@PROXY:PORT -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Note we have to use %5c instead of "" Similarly if your password has any special character replace it with unicode e.g for @ use %40 Refer this Unicodes

Replace above command with your own params

DOMAIN - Your Domain

USER_NAME - Your User Name

PASSWORD - password

PROXY - 10.10.10.10

PORT - 8080

macOS Big Sur

Had to add this to Terminal cmd to get Brew running.

• Add Homebrew to your PATH in /Users/*username/.zprofile:

    echo 'eval $(/opt/homebrew/bin/brew shellenv)' >> /Users/*username/.zprofile
    eval $(/opt/homebrew/bin/brew shellenv)
  

*username = your local machine username

add the following in your terminal and click enter then follow the instruction in the terminal. /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Not sure why nobody mentioned this : when you run the installation command from the official site, in the final lines you would see something like below, and you need to follow the ==> Next steps:

==> Installation successful!

==> Homebrew has enabled anonymous aggregate formulae and cask analytics.
Read the analytics documentation (and how to opt-out) here:
  https://docs.brew.sh/Analytics
No analytics data has been sent yet (or will be during this `install` run).

==> Homebrew is run entirely by unpaid volunteers. Please consider donating:
  https://github.com/Homebrew/brew#donations

==> Next steps:
- Add Homebrew to your PATH in /Users/{YOUR USER NAME}/.bash_profile:
    echo 'eval $(/opt/homebrew/bin/brew shellenv)' >> /Users/{YOUR USER NAME}/.bash_profile
    eval $(/opt/homebrew/bin/brew shellenv)

This is for bash shell. You will see different steps for every different shell, but the source of the steps are same.

Resolve " -bash: brew: command not found "

• Add Homebrew to your PATH in /Users//.bash_profile:

echo 'eval $(/opt/homebrew/bin/brew shellenv)' >> /Users//.bash_profile

eval $(/opt/homebrew/bin/brew shellenv)

After I had tried everything described, I looked up into the folder permission of brew in /usr/local/etc/. Somehow the permission were changed and I was not able to open the folder. I changed the folder permissions(with chmod) with same permissions as the other folders and brew start working.

Here's the script:

> /usr/bin/ruby -e "$(curl -fsSL > https://raw.githubusercontent.com/Homebrew/install/master/install)"